The Leaf Oils of the Australian Species ofCinnamomum(Lauraceae)

The leaf oils of the Australian species of the genus Cinnamomum were analyzed by GC and GC/MS. The results showed that the species fall into two groups in which one group contains aromatic components, while the second group contains only terpenoid constituents. The first group contains C. baileyi, C. oliveri and one chemotype of C. laubatii, and they produce oils rich in methyl eugenol and bicyclogermacrene (C. baileyanum), safrole, methyl eugenol elemicin and bicyclogermacrene (C. laubatii), camphor, safrole and methyl eugenol (C. oliveri). The second group producing terpenoid oils includes C. propinquum (p-cymene, β-eudesmol), C. virens (α-pinene, (E)-nerolidol) and a second chemotype of C. laubatii (bicyclogermacrene,β-selinene, spathulenol and β-eudesmol).